MX9303881A - Metodo y aparato para estimacion de potencia en un sistema de comunicaciones de codificacion ortogonal. - Google Patents

Metodo y aparato para estimacion de potencia en un sistema de comunicaciones de codificacion ortogonal.

Info

Publication number
MX9303881A
MX9303881A MX9303881A MX9303881A MX9303881A MX 9303881 A MX9303881 A MX 9303881A MX 9303881 A MX9303881 A MX 9303881A MX 9303881 A MX9303881 A MX 9303881A MX 9303881 A MX9303881 A MX 9303881A
Authority
MX
Mexico
Prior art keywords
orthogonal
input data
data vector
estimating power
orthogonal coding
Prior art date
Application number
MX9303881A
Other languages
English (en)
Inventor
Fuyun Ling
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of MX9303881A publication Critical patent/MX9303881A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/225—Calculation of statistics, e.g. average, variance

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

Se proporciona un método y un aparato para estimar la potencia de señal. La estimación se logra correlacionando (206) un vector de datos de entrada (204) con un juego de códigos mutuamente ortogonales para generar un juego de valores de salida. El vector de datos de entrada (204) consiste de muestras de datos de una señal codificada ortogonal residida (202). Cada valor de salida corresponde a una medida de confianza de que el vector de datos de entrada es esencialmente similar a uno de los códigos ortogonales de entre el juego de códigos mutuamente ortogonales. Finalmente se genera (208) un cálculo de la potencia de señal codificada ortogonal recibida, como una función del juego de valores de salida.
MX9303881A 1992-06-29 1993-06-28 Metodo y aparato para estimacion de potencia en un sistema de comunicaciones de codificacion ortogonal. MX9303881A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/906,321 US5297161A (en) 1992-06-29 1992-06-29 Method and apparatus for power estimation in an orthogonal coded communication system

Publications (1)

Publication Number Publication Date
MX9303881A true MX9303881A (es) 1994-01-31

Family

ID=25422248

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9303881A MX9303881A (es) 1992-06-29 1993-06-28 Metodo y aparato para estimacion de potencia en un sistema de comunicaciones de codificacion ortogonal.

Country Status (10)

Country Link
US (1) US5297161A (es)
JP (1) JP3205338B2 (es)
KR (2) KR970008172B1 (es)
BR (1) BR9306623A (es)
CA (1) CA2137460C (es)
DE (2) DE4392993C2 (es)
FI (1) FI946045A0 (es)
MX (1) MX9303881A (es)
SE (1) SE9404427L (es)
WO (1) WO1994000926A1 (es)

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Also Published As

Publication number Publication date
DE4392993T1 (de) 1995-06-01
CA2137460C (en) 1998-08-18
JPH07508383A (ja) 1995-09-14
KR970008172B1 (ko) 1997-05-21
SE9404427L (sv) 1995-02-28
FI946045A (fi) 1994-12-22
CA2137460A1 (en) 1994-01-06
DE4392993C2 (de) 1996-09-26
FI946045A0 (fi) 1994-12-22
KR950702358A (ko) 1995-06-19
BR9306623A (pt) 1998-12-08
US5297161A (en) 1994-03-22
JP3205338B2 (ja) 2001-09-04
SE9404427D0 (sv) 1994-12-21
WO1994000926A1 (en) 1994-01-06

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